GB817693A - Improvements in or relating to the polymerisation and copolymerisation of butadiene - Google Patents

Improvements in or relating to the polymerisation and copolymerisation of butadiene

Info

Publication number
GB817693A
GB817693A GB32405/56A GB3240556A GB817693A GB 817693 A GB817693 A GB 817693A GB 32405/56 A GB32405/56 A GB 32405/56A GB 3240556 A GB3240556 A GB 3240556A GB 817693 A GB817693 A GB 817693A
Authority
GB
United Kingdom
Prior art keywords
catalyst
oxygen
lithium
polylithiums
lithiums
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB32405/56A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Firestone Inc
Original Assignee
Firestone Tire and Rubber Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Firestone Tire and Rubber Co filed Critical Firestone Tire and Rubber Co
Publication of GB817693A publication Critical patent/GB817693A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
    • C08F36/06—Butadiene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Polymerization Catalysts (AREA)

Abstract

Butadiene is polymerized alone or copolymerized with styrene in the presence of metallic lithium and/or a lithium hydrocarbon and in the absence of oxygen or oxygen-containing compounds. Metallic lithium is used as a finely-divided dispersion in petroleum jelly, a mineral oil or paraffin boiling above 200 DEG C. Suitable hydrocarbon lithiums and polylithiums including various alkyl, aryl and aralkyl lithiums and polylithiums of which a large number are specified. The amount of catalyst may be such as to provide 0.001 to 1.0 gram as lithium element per 100 grams of monomer. Temperatures from 0-100 DEG C. can be used. Liquid or vapour phase polymerization is used depending on the temperature and pressure and bulk or solution technique may be used, suitable inert solvents being pentane, hexane, heptane, petroleum ether, benzene, cyclopentane, and cyclohexane. Oxygen, other components of air, and water should be avoided, e.g. by charging the reactants under helium or argon, venting about 10 per cent of the charge and sealing the reactor. Also the monomers and solvents should be pure, and are preferably given a final purification by passing through a silica gel column. The catalyst is preferably added last. The reaction product is immersed in methanol or isopropanol containing an anti-oxidant which destroys the catalyst, precipitates the polymer and incorporates the anti-oxidant. Specification 603,630, [Group XIII], is referred to.
GB32405/56A 1955-11-01 1956-10-24 Improvements in or relating to the polymerisation and copolymerisation of butadiene Expired GB817693A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US817693XA 1955-11-01 1955-11-01

Publications (1)

Publication Number Publication Date
GB817693A true GB817693A (en) 1959-08-06

Family

ID=22166270

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32405/56A Expired GB817693A (en) 1955-11-01 1956-10-24 Improvements in or relating to the polymerisation and copolymerisation of butadiene

Country Status (3)

Country Link
DE (1) DE1087809B (en)
FR (1) FR1162710A (en)
GB (1) GB817693A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3072621A (en) * 1959-05-22 1963-01-08 Bayer Ag Polymerization of conjugated diolefines
US3134745A (en) * 1961-04-26 1964-05-26 Dow Chemical Co Polymeric polyols and method of making the same
US3335202A (en) * 1961-05-02 1967-08-08 Pirelli Societa Per Azioni And Composition containing elastomer polymers and/or copolymers vulcanizable by means of peroxides
US3344206A (en) * 1967-09-26 Polybutadiene blends of improved cold flow
US3355421A (en) * 1963-10-18 1967-11-28 Firestone Tire & Rubber Co Cis-1, 4-polybutadiene stabilized with a combination
US3363659A (en) * 1961-08-25 1968-01-16 Firestone Tire & Rubber Co Stereospecific polymers of butadiene copolymerized with small amounts of a divinyl compound
US3366585A (en) * 1964-06-12 1968-01-30 Phillips Petroleum Co Elastomeric blend of organolithiumcatalyzed polybutadiene and organolithium-catalyzed butadienestyrene copolymer
US3414539A (en) * 1965-10-22 1968-12-03 Firestone Tire & Rubber Co Process for stabilizing cis 1, 4-polybutadiene with tetra-alkyl bisphenol

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3157604A (en) * 1960-10-24 1964-11-17 Phillips Petroleum Co Polymerization initiators
DE1266507B (en) * 1964-05-22 1968-04-18 Inst Fiz Orch Chimii An Bssr Process for the polymerization of cyclohexadiene- (1, 3)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE255786C (en) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3344206A (en) * 1967-09-26 Polybutadiene blends of improved cold flow
US3072621A (en) * 1959-05-22 1963-01-08 Bayer Ag Polymerization of conjugated diolefines
US3134745A (en) * 1961-04-26 1964-05-26 Dow Chemical Co Polymeric polyols and method of making the same
US3335202A (en) * 1961-05-02 1967-08-08 Pirelli Societa Per Azioni And Composition containing elastomer polymers and/or copolymers vulcanizable by means of peroxides
US3363659A (en) * 1961-08-25 1968-01-16 Firestone Tire & Rubber Co Stereospecific polymers of butadiene copolymerized with small amounts of a divinyl compound
US3355421A (en) * 1963-10-18 1967-11-28 Firestone Tire & Rubber Co Cis-1, 4-polybutadiene stabilized with a combination
US3366585A (en) * 1964-06-12 1968-01-30 Phillips Petroleum Co Elastomeric blend of organolithiumcatalyzed polybutadiene and organolithium-catalyzed butadienestyrene copolymer
US3414539A (en) * 1965-10-22 1968-12-03 Firestone Tire & Rubber Co Process for stabilizing cis 1, 4-polybutadiene with tetra-alkyl bisphenol

Also Published As

Publication number Publication date
FR1162710A (en) 1958-09-16
DE1087809B (en) 1960-08-25

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